Kraus Curriculum Development Library is a database of educational materials from course content (lesson plans, learning activities) to teacher and administrator strategies, from educational legislation to academic standards by subject and grade level.  The materials come from state departments of education and other government agencies,  as well as local school districts, professional associations, non-profit organizations, and other sources that have educational concerns. Documents published after 2000 are available on the site as PDFs and/or HTML files.